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3 years ago

The polynomial - 16t+ vt +s, represents the height (in feet) of an object, where v is the

Mathematics

1 answer:

Anna007 [38]3 years ago

7 0

Answer:

At 1.5 seconds and 2.5 seconds

Step-by-step explanation:

Because this is parabolic motion, the object will reach the height of 68 feet when it's going up AND when it's coming down. In order to find out those times, you set the h on the left side of the equation equal to 68, because h stands for height.

Set that equal to 0 and factor to solve for t:

Using the quadratic formula, we get t = 1.5 and t = 2.5

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8 1/2 - 6 1/4 please subtract

Alexandra [31]

Answer:

2.25

Step-by-step explanation:

8.5-6.25

(8-6)+(0.5-0.25)

2+0.25

2.25

4 0

2 years ago

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Which point is closest to 7 on the number line? ET C0

liraira [26]

Answer: ET

Step-by-step explanation:

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3 years ago

What is the relative frequency of students speaking spanish?

borishaifa [10]

Answer:

Step-by-step explanation:

add all of them up, Julie, 6 + 12 + 3 + 4 = 25

there are 25 total students. now divide each of the number of people that speak that language by the total students

6/25 = .24 = 24%

12/25= .45 = 48%

3/25 = .12 = 12%

4/25 = .16 = 16%

Also, if you want to just check, see if the percentages add to 100%

6 0

2 years ago

If the radius of the Cicular ground is 6m find, the area of ground #plz help

Fed [463]

Answer:

113.142857 m²

Step-by-step explanation:

As per the provide information in the given question, we have :

Radius of the circular ground = 6 m

We are asked to find the area of the ground.

Since, it is in the shape of circle, so we'll apply here the formula to find the area of the circular ground.

We know that,

>> Area of circle = πr

>> Area of the ground = $\sf \dfrac{22}{7}$ × 6 m × 6 m

>> Area of the ground = $\sf \dfrac{22}{7}$ × 36 m²

>> Area of the ground = $\sf \dfrac{792}{7}$ m²

>> Area of the ground = 113.142857 m²

$\therefore$ Therefore, area of the ground is 113.142857 m². 

3 0

3 years ago

Please help me with this problem please

11111nata11111 [884]

9514 1404 393

Answer:

shortest: 11 1/8 in
longest: 11 3/8 in

Step-by-step explanation:

It should be no surprise that the shortest allowable length is the nominal length less the full allowed tolerance:

11 1/4 - 1/8 = 11 1/8 . . . inches

Likewise, the longest allowable length is the nominal length plus the maximum tolerance:

11 1/4 + 1/8 = 11 3/8 . . . inches

_____

Of course, you know that 1/4 = 2/8, so adding or subtracting 1/8 gives the fractions shown above.

5 0

3 years ago